PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-16:27:50
G01     48.9           24.6                9.9 +/-    0.79      19.4 +/-    0.79  0.050 / 0.070
G06     176.1          27.9               12.1 +/-    1.03      22.2 +/-    1.03  0.060 / 0.090
G07     146.7          11.2               12.6 +/-    3.84      34.2 +/-    3.84  0.060 / 0.120
G11     44.2           13.5                9.3 +/-    1.62      24.1 +/-    1.62  0.060 / 0.110
G13     248.8          29.6               11.0 +/-    1.25      19.5 +/-    1.25  0.120 / 0.210
G15     284.6          14.8                8.6 +/-    1.59      21.5 +/-    1.59  0.110 / 0.270
G17     320.3          78.1               12.0 +/-    0.83      12.2 +/-    0.83  0.220 / 0.270
G19     247.2          58.3               13.4 +/-    1.03      15.5 +/-    1.03  0.140 / 0.320
G28     54.6           52.3               11.2 +/-    0.30      13.7 +/-    0.30  0.040 / 0.070
G30     150.6          40.6               13.0 +/-    1.09      18.7 +/-    1.09  0.050 / 0.080